copy_to_high_bio

函数名称：Simple bounce buffer support for highmem pages. Depending on the* queue gfp mask set, *to may or may not be a highmem page. kmap it* always, it will do the Right Thing

函数原型：static void copy_to_high_bio_irq(struct bio *to, struct bio *from)

返回类型：void

参数：

类型	参数	名称
struct bio *	to
struct bio *	from

142

from_iter等于r iterating one bio from start to end

144

bio_for_each_segment(tovec, to, iter)

145

fromvec等于bio_iter_iovec(from, from_iter)

146

如果bv_page不等于bv_page则

152

vfrom等于page_address(bv_page)加bv_offset

155

bounce_copy_vec( & tovec, vfrom)

156

flush_dcache_page(bv_page)

158

bio_advance_iter(from, & from_iter, bv_len)

**调用者**
名称	描述
__bounce_end_io_read

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告